10216b44d2
This avoids 4 uses of head.
41 lines
1.3 KiB
Haskell
41 lines
1.3 KiB
Haskell
{- git-annex assistant gpg stuff
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-
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- Copyright 2013 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Assistant.Gpg where
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import Utility.Gpg
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import Utility.UserInfo
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import Utility.PartialPrelude
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import Types.Remote (RemoteConfigField)
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import Annex.SpecialRemote.Config
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import Types.ProposedAccepted
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import Data.Maybe
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import qualified Data.Map as M
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import Control.Applicative
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import Prelude
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{- Generates a gpg user id that is not used by any existing secret key -}
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newUserId :: GpgCmd -> IO UserId
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newUserId cmd = do
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oldkeys <- secretKeys cmd
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username <- either (const "unknown") id <$> myUserName
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let basekeyname = username ++ "'s git-annex encryption key"
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return $ fromMaybe (error "internal") $ headMaybe $
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filter (\n -> M.null $ M.filter (== n) oldkeys)
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( basekeyname
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: map (\n -> basekeyname ++ show n) ([2..] :: [Int])
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)
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data EnableEncryption = HybridEncryption | SharedEncryption | NoEncryption
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deriving (Eq)
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{- Generates Remote configuration for encryption. -}
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configureEncryption :: EnableEncryption -> (RemoteConfigField, ProposedAccepted String)
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configureEncryption SharedEncryption = (encryptionField, Proposed "shared")
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configureEncryption NoEncryption = (encryptionField, Proposed "none")
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configureEncryption HybridEncryption = (encryptionField, Proposed "hybrid")
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